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Finding the Fourth Proportional to 658,377.02, 908,578.95 and 371,909.18

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Solution

The fourth proportional to 658,377.02, 908,578.95 and 371,909.18 is: 513,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,377.02 : 908,578.95 = 371,909.18 : x
  2. Step 2: Convert to fraction form
    658,377.02/908,578.95 = 371,909.18/x
  3. Step 3: Cross multiply
    658,377.02x = 908,578.95 × 371,909.18
  4. Step 4: Simplify right side
    658,377.02x = 337,908,852,259.76
  5. Step 5: Solve for x
    x = 337,908,852,259.76/658,377.02
  6. Step 6: Final answer
    x = 513,245.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.